document.write( "Question 194977: hi. im having a really hard time solving a logarithmic equation. heres the first problem log4 x=3/2 can you explain it to me? \n" ); document.write( "
Algebra.Com's Answer #146262 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Apply \"log rules\" \n" ); document.write( "You can review them at: \n" ); document.write( "http://www.purplemath.com/modules/logrules.htm \n" ); document.write( ". \n" ); document.write( "log4 x=3/2 \n" ); document.write( "x = 4^(3/2) \n" ); document.write( "x = sqrt(4^3) \n" ); document.write( "x = sqrt(64) \n" ); document.write( "x = +- 8 \n" ); document.write( ". \n" ); document.write( "We can toss out the negative solution because you can't take a log of a negative number. \n" ); document.write( "Therefore, \n" ); document.write( "x = 8 \n" ); document.write( " \n" ); document.write( " |